Burnishing-tool.



Z. BEAUDRY; BURNISHING TOOL. APPLIOATION FILED OOT.13, 1906.

Patented June 18, 1912.

2 SHEETSSHEET 1.

Z. BEAUDRY.

BURNISHING TOOL.

APPLIOATION FILED 001 .13, 1906.

1,030,049, Patented June 18,1912.

2 SHEETS-SHEET 2.

Iii

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87 5 5 20 WZ'A/Efifi [4 {/WiA/T R- COLUMBIA PLANOURAPH c0 WASHINGTON n Cs rrns PA ZOTIQUE IBEAUDRY, 0F LYNN, MASSACHUSETTS, ASSIGNOR TOUNITED-XPEDITE FIN- ISHING COMPANY, OF BERWICK, MAINE, A. CORPORATION OFMAINE.

BURNISI-IING-TOOL.

Specification of Letters Patent.

Patented J 11116 18, 1912.

AppIication filed October 13, 1906. Serial'No. 338,827.

To all whom it may concern:

Be it known that I, ZOTIQUE BEAUDRY, a citizen of the United States,residing at Lynn, in the county of Essex and Commonwealth ofMassachusetts, have invented certain Improvements in Burnishing-Tools,of which the following description, in connection with the accompanyingdrawings, is a specification, like reference characters on the drawingsindicating like parts in the several figures.

This invention relates to burnishing machines and particularly to thetools used in machines for burnishing the edges of heels and soles ofboots and shoes.

The edges of heels and of soles vary in edge contour, by which term asherein used is meant the configuration of the edge as it appears in atransverse section of the heel or sole. Some edges are straight or planewhile others are more or less concave and still other edges are slightlyconvex. In some shoes also the edge of the heel is plane in oneporti0n,as, for example, near the breast corners,-and by reason ofinaccurate trimming or scouring, and some times designedly, curved inanother portion, as at the rear end. A tool for burnishing an edgeshould have a work-rubbing surface which is shaped as a substantialcounterpart of the contour of the edge to be burnished and for thebestresults said surface should be at least as wide as said edge in orderthat the entire width of the edge may be treated as the tool passes overit. Two types of burnishing tools are in use for this purpose.

One type is provided with a yielding work-rubbing surface having anormal shape approximating a counterpart of the contour of the edges tobe burnished, said surface being designed to yield to enable it toconform more nearly to the contour of the work as the tool passes overthe work. This tool gives very satisfactory results, but it is somewhatexpensive to manufacture and its work-rubbing surface has to be renewedfrom time to time. second type of burnishing tool is usually made as asolid wheel or roll having a peripheral work-rubbing surface formed as acounter part of the contour of the particular edge to be burnished byit. This tool will not burnish properly any other contour of edge thanthat for which it is especially shaped and therefore a shoe manufacturermaking several styles of shoes having different edges must keep on handa large number of burnlshing tools and the operator must change toolsfor each lot of shoes having a difierent edge. A further and serious objection to this old style of tool is that shoes having heels or soleswhich differ in edge contour in different portions cannot besatisfactorily burnished because if the burnishing tool fits one portionof the edge it fails to fit properly the portion having a differentcontour.

An object of this present invention is to provide a burnishing toolhaving a workrubbing surface which, although it may be unyielding, willproperly burnish heels or soles differing in edge contour. I havediscovered that I can secure this object by providing a burnishing toolhaving a work rubbing surface comprising a face which will burnish themiddle portion of a heel or sole edge, whatever the contour of said edgemay be, and also other faces that will act upon the heel or sole edgefrom its middle portion to its margins. The work-rubbing surface mayinclude a face which is shaped to rub the middle portion of the mostconcave edge contour to be burnished by the tool, and a face having aproperly shaped and arranged depression the edges of which constitutework-rubbing faces. The depressions will receive the less concave,straight, or convex edges, or portions of edges of any contour presentedto the tool and the edges of the depressions will burnish the surface ofthe work as the tool advances. The depressions referred to may be merelydepressions in the convex surface that do not extend below a lineconnectingtheir opposite edges, or they may be recesses that do extendbelow a line, or again may comprise a central portion extending belowsuch a line and a marginal portion of substantial width that isapproximately plane. For convenience the term depressions willhereinafter be used to refer generically to such portions of thework-rubbing surface of the tool.

Preferably the depressions in the workrubbing surface of the tool extendacross a large portion of the width of said surface, but have theiredges terminating within the opposite marginal edges thereof. Thedepressions are also preferably elliptical, diamond-shaped, or of otheroblong configuration, having their edges extending obliquely from themiddle of the periphery of the tool toward the opposite edges thereof.This construction provides a longitudinal series of differently-shapedfaces formed to engage different contours of the surface beingburnished. The convex portions will rub the middle portion of the edge,regardless of its contour, and the edges of the depressed portions rubthe edge from its middle portion to its margin, so that the entire widthof the heel or sole edge will be burnished whether it is straight orcurved. This action will, of course, take place re gardless of anyvariations in contour of the work at different places in the length ofthe edge. If the edge to be burnished is con vex it is important thatthe depressions be deep enough to receive the rounded contour of thework while the edges of the depressed portion contact with and rub thesurface of the work. It is, therefore, preferable to form thedepressions as recesses, the central portions of which extend below thelevel of the marginal edges of the work-rubbing surface of the tool.

-The depressions preferably are shaped and arranged to present edgesextending obliquely across the work-rubbing surface of the tool inopposite directions. This arrangement causes said edges to lay thefibers of the leather and to work into the crevices in the edge of theheel or sole the finishing material which is usually employed inburnishing shoes. The tool may also be provided with grooves or ribswhich assist in distributing the finishing material and appear toproduce a smoother finished surface in the work. Preferably thedepressions are separated from one another by a substantial portion ofthe work-rubbing surface of the tool which portion extends entirelyacross the width of the tool. By this arrangement I avoid sharp cornersor projections on the tool which might act too harshly upon the work anda convex portion of sufficient extent is provided at the middle of thetool to burnish properly the middle portion of the heel or sole edgebeing treated. In addition to the depressions referred to, which may bearranged in a series extending lengthwise along the middle of thework-rubbing surface of the tool said tool may be provided with slightlyflattened faces at either side of the middle and arranged lengthwise ofsaid face to alternate with the middle depressions. The tool may, ifdesired, be provided with a guiding flange to assist in presenting thework in proper lateral position; and it is sometimes desirable toprovide a sole-edge burnishing tool with flanges at each margin of itsedge to guide the sole and burnish the corners or upper and lowerangular portions of the sole edge.

The foregoing and other features of the invention, including certaindetails of construction, will be explained in the following descriptionand pointed out in the claims.

In the drawings,Figure l is a side elevation, partly in section, of aheel-burnishing tool; Fig. 2 is a right-hand elevation of the tool shownin Fig. 1; Fig. 3 shows a perspective view of the heel portion of a shoefor the purpose of illustrating the edge contour of the heel; Fig. 4 isa detail sectional view on the line 4 in Fig. 1, showing a concaveportion of a heel presented to the convex portion of the tool; Fig. 5 isa sec tional view on said line 4 of Fig. 1, showing the action of aconvex portion of the work rubbing surface of the tool upon anapproximately straight portion of the edge of the heel; Fig. 6 is asimilar view on the section line 6 of Fig. 1; Fig. 7 is a similar viewon the line 7 of Fig. 1. Fig. 8 is a modification, showing a burnishingtool having a series of depressions of different shape about theperiphery of the tool; Fig. 9 is a side elevation of a tool embodyingthis invention and adapted for burnishing the edge of a sole, this toolbeing provided with guiding flanges at each marginal edge of itsworkrubbing surface; Fig. 10 is a detail perspective view of a modifiedform of burnishing tool, having worlerubbing faces extending lengthwisein sinuous lines ranging from the marginal edge of the tool to itsmiddle; Fig. 11 is a similar view of a modified con- .struction havinggrooves intervening between the depressions in the work-rubbing surfaceof the tool and inclined in opposite directions from the edges towardthe middle of said surface; Figs. 12 and 13 are, respectively, detailsectional views on the lines 12 and 13 of Fig. 11; Fig. 14 is a detailperspective view of a further modification involving this invention;Fig. 15 is a detail sectional view on line 15 of Fig. 14:; Fig. 16 showsa further modification.

For the purpose of explaining this invention a rotary burnishing tool isillustrated and will be herein described. This tool comprises anattaching portion or hub 2 carrying a binding screw 4-, by means ofwhich the tool may be fastened to a shaft 6 to be actuated. The tool hasits workrubbing surface 0-11 its periphery and this surface comprises alongitudinal series of differently-shaped faces formed to engagedifferent contours of the surfaces to be burnished,-asl for example,different edge contours of heels.

In Fig. 1 the rubbing surface of the tool is transversely convex in itsgeneral outline and the series of work-rubbing faces comprises convexfaces 10 which are adapted to engage the middle portion of the mostconcave edge to be burnished by the tool. Intermediate the convex facesand connecting them are depressed faces 16. These faces may have merelya less degree of convexity than the faces 10 or may be flat or planefaces viewed transverselv of the tool or they may be recesses the bottomfaces of which extend below a plane connecting the opposite edges of thework-rubbing surface of the tool. The faces 16 present workrubbingmembers 14 extending outwardly from the middle portion of thework-rubbing surface toward its edges. The depressed faces permit a heelor a portion of an edge which is straighter than the convex face of thetool is adapted to fit to be presented in position for its surface to beacted upon by the work-rubbing faces 14, as is illustrated in Figs. 5,6, and 7, from the middle portion of said surface to its margins.

As will be understood by reference to Figs. 4 to 7 the middle portion ofthe heel edge is acted upon by the middle portion of the work-rubbingsurface, whatever the contour of the edge may be. From the middleportion of the edge to its margin the faces 14 will rub the work as saidfaces advance in the rotation of the tool. The burnishing tool ispreferably provided with a guiding flange 20 at one of its marginaledges to assist the operator in presenting the edge to be burnished tothe work-rubbing surface of the tool. The guiding flange also serves toprevent the angular lower edge of the heel from being broken down ordeformed by pressure against the tool.

In the modified construction shown in Fig. 8 the tool is provided with aworkrubbing surface having a longitudinal series of depressions ofdifferent shape arranged alternately, the depressions being oblong andthose marked 161 having their longer axes extending longitudinally ofthe workrubbing surface, while the depressions marked 162 have theirshorter axes extending longitudinally of the work-rubbing surface andtheir longer axes extending transversely thereof.

I11 the modification shown in Fig. 10 the tool is provided with aworlerubbing surface having burnishing faces 141 extending lengthwisethereof in sinuous or zigzag lines ranging from the marginal edges ofthe tool to the middle portion of the tool and merging at said middleportion. This construction forms a tool having at the middle where thefaces merge a transverse convex portion and having between said convexportions work-rubbing faces which alter nately diverge and converge inextending toward the marginal edge of the tool and thence back to themiddle. The two faces together constitute a depressed or transverseflattened portion of the periphery of the tool having a recess 163 toreceive a convex or a straight portion of a surface being burnished.

In the modification shown in Fig. 11 the work-rubbing surface of thetool has oblong depressions of varying sizes. These depres sions arealso arranged in circular alinement around the periphery of the tool. Aswill be seen from the sectional view in Fig. 12 the portion of the toolimmediately surrounding the depression 164 is transversely flattened asat 142. The convex portion of the work rubbing face is provided in thismodification with grooves 35 which extend obliquely from one marginaledge of the tool to the other. There are shown two series of thesegrooves crossing each other along the middle portion of the work-rubbingface.

In the modification shown in Fig. 14 the convex portion of thework-rubbing surface between the depressions 16 is flattened at itsedges as at 86. This shape appears more clearly in the sectional viewshown in Fig. 15. This construction enables this portion of the tool toenter a portion of the surface being burnished which is more concavethan the general outline of the working surface of the tool is designedto fit. By this construction the middle of such a concave surface may beburnished by said convex portion of the tool and the portions of thework at either side of said middle portion would be, acted upon by thework-rubbing faces formed at the edges of the depressions. In thismodification the periphery of the tool is provided with transversegrooves 37.

In the modification shown in Fig. 16 the tool has astraight edgepresenting a narrow workrubbing surface 101 which will burnish themiddle port-ion of an edge of any contour. The edge is beveled at 40 onopposite sides of the face 101 to permit said face to enter and engage aconcave heel edge and the edges 42, at which the bevels 40 and faces 101meet, form work-rubbing surfaces which will furnish a heel edge from itsmiddle portion to its margins .as the tool advances over the work. Theseedges 42 serve essentially the same purpose as the faces 14 adjoiningthe depressions 16 in Fig. 1. The tool shown in Fig. 16 is alsopreferably, although not necessarily pro vided with a depression 165,the edges of which form rubbing faces. It is to be noted that the edgesof the depressions form rubbing faces that extend from the middleportion of the work-rubbing surface of the tool obliquely toward itsmargins and faces which are oppositely inclined from the margins towardthe middle of said surface. It may be observed also that these facesextend obliquely with relation to the line of movement of the tool as itis rotated.

In the modification shown in Fig. 9 a sole- 1 edge burnishing tool isprovided with guiding flanges at each marginal edge of its work-rubbingsurface.

In the use Of this burnishing tool it is rotated by the shaft 6 and anyheel having it fromvsaid middle portion to the margins so that allportions of the edge are treated,

whatever may be the contour of the surface of the work. When the toolshown in Fig. 16 is rotated the edges 42 rub the stock from its middleoutwardly and then in a reverse direction in a manner similar to theaction of the faces 14, 141, and 142. It will be observed that onaccount of the depressions in the periphery of the work-rubbing surfacethe extent of the burnishing surface between the opposite edges of thetool alternately increases and diminishes as the tool advances over thework. The depressions 16, 161, 162, 163, 164, 165 are oblong and soformed in the surface of the tool that the rubbing edges or faces 14,141, or 142 extend obliquely from the middle portion of the work-rubbingsurface to its edges and from thence back to the middle portion again.This disposition of the faces 14, 1 141, or 142 causes them to rub thestock first outwardly toward the margins of its edge and then inwardlyaway from its margins and then lengthwise of the edge. This rub bingaction lays the fibers of the leather and also works the finishingmaterial into the stock. The grooves 35 and 37 also appear to assist inproducing this effect. The alternate arrangement of the depressions 161,162 in Fig. 8 also produces a rubbing of the work back and forth indifferent lines to the same end. This invention has the advantage that aheel can be brought into contact with the work-rubbing surface by asingle movement, or by direct pressure in a way to burnish the entirewidth of its edge whatever the contour of that edge with reasonablelimits of variation. This avoids the necessity for rocking and slidingthe heel transversely of the tool as has heretofore been necessaryunless the burnishing tool fitted accurately the contour to which theheel edge had been trimmed and scoured, and unless said edge was ofuniform contour throughout its length. Less skill and labor is,therefore, required to burnish heels with this tool, less time isconsumed, and better results are secured than have heretofore beenpossible in practice.

Having explained the nature of the invention and described how it may beembodied in edge burnishing tools, I claim. and desire to secure byLetters Patent of the United States 1. A burnishing tool having awork-rubbing surface comprising a longitudinal series ofdifferently-shaped faces alternately arranged and formed to engagerespectively different contours of surfaces being burnished.

2. A burnishing tool having a work-rubbing surface comprising alongitudinal series of differently-shaped faces formed to engagerespectively, during the advance of the tool, with different portions ofthe width of the surface being burnished, combined with means by whichthe tool may be actuated.

3. A burnishin'g tool having a work-rubbing surface including a convexface for engaging a concave portion of the surface being burnished, anda flattened face provided with diverging rubbing members extendingsubstantially across said acting face and arranged to engagesimultaneously a less concave or straight portion of the surface beingburnished.

4. A burnishing tool having a work-rubbing surface comprising alongitudinal series of differently-shaped faces formed to engage, duringthe advance of the tool, with different portions of a surface beingburnished, said work-rubbing surface including a convex face to engage aconcave portion of the work and a depressed face the edges of which formrubbing members diverging from the middle of said acting face outwardlytoward the margin thereof, combined with means by which the tool may beactuated.

5. A burnishing tool having'a work-rubbing surface comprising projectingconvex portions to engage the middle portion of a concave surface beingpolished, and relatively depressed portions having rubbing facesextending from the middle of said acting face toward the marginal edgesthereof to act on the surface being polished from its middle portiontoward its edges.

6. A rotary tool comprising work-rubbing faces extending substantiallyaround the tool in oblique lines back and forth between its oppositemarginal edges and the middle of the acting face.

7. A burnishing tool having a work-rubbing surface provided with aseries of depressions comprising oblong depressions having their longeraxes extending transversely across said work-rubbing surface alternatingwith other depressions having their shorter axes extending transverselyacross said work-rubbing surface.

8. A rotary burnishing. tool having a work-rubbing surface provided witha longitudinal series of oblong depressions arranged with their majorand minor axes alternating about the periphery of the tool.

9. A burnishing tool having a convex work-rubbing surface provided witha series of depressions located along the middle of the width of saidface, and grooves between said depressions and extending transverselyacross the work-rubbing surface.

10. A burnishing tool having a convex work-rubbing surface provided witha series of depressions located along the middle of the width of saidface, and grooves between said depressions and inclined in oppositedirections from the edges of the tool toward the middle of thework-rubbing surface.

11. A burnishing tool having a transversely convex work-rubbing surfacepro vided with a series of depressions arranged along the middle of theacting face and terminating at their'sides within the opposite edges ofsaid work-rubbing surface.

12. A rotary burnishing tool having a peripheral work-rubbing surfaceprovided with a series of depressions, said depressions extending belowa plane connecting the opposite edges of said surface and terminating attheir sides within the opposite edges of the work-rubbing surface ofsaid tool.

13. An edge burnishing tool having a convex work-rubbing surfaceprovided with a series of depressions terminating at their sides withinthe opposite edges of said surface and which are arranged longitudinallyaround the tool and extend below the plane of the opposite edges of saidconvex surface, said depressions presenting at their opposite edgesrubbing faces extending at an angle to the axis of rotation of the tool.

14. A rotary burnishing tool provided with a series of depressionscentrally arranged in circular alinement around its periphery, saiddepressions terminating at their sides within the opposite edges of thework-rubbing surface of the tool.

15. A rotary burnishing tool having a work-rubbing surface provided witha series of depressions extending below the plane connecting theopposite edges of said surface and arranged longitudinally around theperiphery of the tool, said depressions terminating at their sideswithin the opposite edges of the wood-rubbing surface, and separated onefrom another by a substantial portion of the rubbing surface extendingentirely across the tool.

16. A burnishing tool having a convex work-rubbing surface provided witha series of depressions having marginal portions of substantial widththat are approximately plane faces, and recesses located within andextending below said marginal portions.

17. A burnishing tool having a transversely convex work-rubbing surfaceprovided with a series of depressions arranged along the middle of thesaid surface and terminating at their sides within the opposite edges ofsaid surface, and an angular guiding flange extending around said toolat one of the edges of its work-rubbing surface.

18. A burnishing tool having a workrubbing surface comprising alongitudinal series of diiferentlyshaped faces formed to engage, duringthe advance of the tool, with different portions of a surface beingburnished, said faces including transversely convex portions each havinga middle rubbing surface and depressions near its edges; andintervening, centrally-depressed portions having rubbing surfacesalternately diverging from and converging toward the middle of theactlng face of said workrubbing surface.

19. A burnishing tool having a workrubbing surface including a convexface for engaging a concave portion of the surface being burnished, anda depressed portion having a face formed to engage a less concave or astraight portion of said surface.

20. A burnishing tool having a workrubbing surface provided withdepressions terminating at their sides within the opposite edges of saidwork-rubbing surface and presenting at their edges rubbing facesextending obliquely with relation to the line of movement of the tool,combined with means for actuating the tool.

21. A burnishing tool having a workrubbing surface comprising unbrokenrubbing faces extending from the margins of said surfaces obliquelytoward the middle thereof and other work-rubbing faces oppositelyinclined from the margins toward the middle of said surface, each ofsaid two series of oblique faces terminating at or near the middle ofthe periphery of the tool.

22. A rotary edge burnishing tool having a work-rubbing surfacecomprising a middle portion extending longitudinally about the tool forengaging the middle portion of the edge to be burnished, and inclinedfaces located on opposite lateral sides of said middle portion andpresenting worlcrubbing edges extending obliquely from the middleportion of the tool toward its margins.

23. A burnishing tool having a workrubbing surface comprising thetransversely convex rubbing faces 10 alternating with the oppositelyinclined faces 14: located in a lower plane than the faces 10.

24. A burnishing tool having a workrubbing surface comprising thetransversely convex rubbing faces 10 alternating with the rubbing faces14; which first diverge from a face 10 toward the margins of the tooledge and then converge toward the middle thereof.

25. A burnishing tool having a workrubbing surface comprising thetransversely convex rubbing faces 10 alternating with depressions 16which are bounded by the diverging and converging rubbing faces 14.

26. A burnishing tool having a workrubbing surface on its peripheryprovided with a longitudinal series of depressions terminating at adistance from the edge of the tool and having marginal work-rubbingedges with different characteristics for varying the treatment of thework as they successively engage it in the movement of the too].

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

ZOTIQUE BEAUDRY.

Witnesses CHARLES E. GRUsH, ARTHUR L. RUSSELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner ofPatents, Washington, D. G.

i It is hereby certified that in Letters Patent No. 1,030,049, grantedJune 18, g 1912, upon the application of Zotique Beaudry, of Lynn,Massachusetts, for an 2' improvement in Burnishing-Tools, an errorappears in the printed specification E requiring correction asfollowst-Page 5, line 55, for the compound Word Wood- 5% rubbing readwork-matting; and that the said Letters Patent should be read with gthis correction therein that the same may conform to the record of thecase in the E Patent Office.

- Signed and sealed this 23rd day of July, A. D., 1912.

g -1 o. o. BILLINGS,

2 Acting Gammz'sstoner 0 f Patents. Q

